Walter e



(No Model.) W. E. FROST.

GRIMPING MACHINE.

No. 458,951. Patented Sept. 1, 1891.

l DD'JEJUnmmvmmc-rhw.

PR. w

NlTED PATENT @rrren.

'WALTER E. FROST, OF LE\VISTON, MAINE, ASSIGNOR TO \VILLIAM \V.SANBOR-N, OF SAME PLACE.

CRIMPING MACHINE.

SPECIFICATION forming part of Letters Patent No. 458,951, datedSeptember 1, 1891.

Application filed March 3, 1890. Serial No. 342,396. (No model.)

To aZZ whom, it may concern.-

Be it known that I, WALTER E. Fnosr, a citizen of the United States,residing at Lewisto11,in the county of Androseoggin and State of Maine,have invented certain new and useful Improvements in Crimpirig-Machines;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to crimping-machines for crimping the Vamps ofboots and shoes; and the object of my invention is to construct amachine which shall be more cheap, simple, and effective than those nowin use.

My invention consists of combin ation of elements, as set forth in theaccompanying claims.

The machine in which my invention is curbodied consists of a base towhich is attached a guide or upright having a slide adapted toreciprocate vertically therein, a rack and a worm-gear for raising andlowering said slide, a pair of brackets attached to the lower endthereof, jaws suspended between said brackets, and a standard at the endof the machine opposite to said guide or upright, having a formerattached thereto which projects out over the said jaws when the latterare at their lowest position. To the reciprocating slide is attached anoutrigger containing stops which operate the shipping-lever to reversethe machine. This machine is illustrated in the accompanying drawings,in which Figure 1 is a side view; Fig. 2, a part rear view; Fig. 3, asection on .1; a: of Fig. 1; Fig.

4., a section through 7 y of Fig. 1. Fig. 5 is a face view of jaw andvertical section of the same.-

A represents the bed or" the machine, and a a the legs thereto. Boltedto one end of the bed is a guide or upright G. This guide or uprightconsists of two standards, the front edges of which are rabbeted toreceive a slide D, which reciprocates vertically in the guide. Theplates D secure the slide in place. On the rear side of the slide D isformed a rack cl. Engaging this rack is a worm-gear c, fixed on theupper end of a vertical shaft E. The upper end oi this shaft E turns ina box I, and

against the upper surface of the jaw.

to the lower end is affixed a miter-gea-re. Engaging with the miter-geare is a miter-gear 7t, secured to the driving-shaft 72.. On the end ofthe driving-shaft 71 are the loose pulleys ll and the tight pulley ll.It will thus be seen that the rotation of the driving-shaft raises orlowers the slide D, according as it turns one way or the other. To thelower end of the slide D are affixed two brackets G and G. The bracket Ghas a projection or offset 9 extending laterally from its outside face.

The jaw F is connected with the bracket G as follows: Two bolts 7e arefixed in the jaw and extend entirely through the bracket. On the end ofeach bolt is a nut 7t, which confines a rubber spring or butter ki-between it and the bracket. The tendency of this rubber spring is topull the jaw outward toward the bracket. The jaw is pressed or forced inthe opposite direction by means of a rod in two sections 1' '1",'littingan opening which extends part way through the offset orprojection g. The inner end of the section 2' presses Between the twosections 1' r of the rod is a rubber butter r The tendency of thisrubber spring is to force the jaw inward. The tension of the jaw F isregulated by means of a screw j, which extends vertically through anopening which passes by the outer end of the rod 1'. This screw j has aconical surface near its end, against which surface the Outer end of therod impinges. hen the screw is moved up or down, the rod r, andconsequently the jaw F, is moved in or out, as the case may be. Theupper portion of the jaw is supported by means of a bent rod 7, one endof which is fixed in the bracket, while the other end supports a rubberbutter Z, retained in place by a nut F. The former plate 13 is atfixedto an upright b at the end of the machine opposite to the guide orupright C, and the former plate is in such a position that when the jawsmove up ward the plate will pass between them.

Attached to the bracket G is an outrigger 2, to which is secured avertical bar S, having at suitable points above and below stops 8'.These stops are so placed that when the jaws are at their lowestposition the upper stop will depress the shipping-handle m, and whenthey are at their upper position the lower stop will raise said handle,thereby reversing the shipping mechanism.

The shipping mechanism consists of a shipping-lever N, having ahorizontal foot or lower portion H to which are secured stirrups n. Thelever N is secured to a shaft n, journaled in brackets of. The handleon, before described, is connected with one end of the shaft 71, andprojecting from the other end of said shaft is a pin or arm, the end ofwhich is connected by a spring 9 with the bed of the machine. The arm isextended in a nearly upright or vertical position from the shaft '11 insuch a manner that the point of attachment of the spring is thrownalternately from one side of the shaft to the other, whereby theshipping-lever is held in position until reversed.

In Fig. 1 the jaws are represented as being at their lowest position.The handle 0% is depressed, throwing the foot of the shipping-leveroutward, bringing the inner belt, which produced the outward motion,over the tight pulley H. The vamp to be crimped is placed on the upperedge of the said jaws, and the jaws move upward,the form passing betweenthem and crimping the vamp. When the lower stop 8 reaches the handle m,it is raised and the shipping-lever thrown over, reversing the motion ofthe machine and causing the jaws to descend to their lowest position.

It will be seen that as my machine is constructed and arranged theoperator stands in;

a position next to the standard I), andhence is in a position to readilyput on and take off the Vamps as they are crimped. The ease with whichthe Vamps can be manipulated renders it possible to speed the machine toa high degree and renders it a very rapid working machine. The parts areall easily removed for purpose offadjustment and the entire machine wellfitted for a variety of work and is extremely simple.

In Fig. 5 I represent a face view and section of one of the jaws which Iuse in my machine. The peculiarity of the jaw is in the fact that thereare several independent sets of grooves and ribs, one above the other,sepa rated by a hollow space or recess f. As a result of thisconstruction the vamp as it passes through from the top downward strikesin succession these sets of grooves and ribs and produces the effect ofpassing v and ribs, and must be at least as wide as two ribs.

I claim- 1. In a crimping-machine, the combination of a bed-piece, anupright at one end thereof, a slide reciprocating vertically in saidupright, said slide having a rack onits rear face, a vertical shaft inrear of said upright, a worm-gear thereon adapted to engage said rack,brackets on the lower end of said slide, jaws hung between saidbrackets, a standard on said bed at the opposite end from said upright,and a forming-plate projecting outward from the top of said standardabove said jaws when the latter are at their lowest position,substantially as described.

2. In a crimping-machine, the combination of the jaws and thesupporting-brackets, bolts secured to one of said jaws and extendingthrough one of said brackets, springs on the outer ends of said bolts toforce the jaw toward the bracket, an aperture in said bracket,

a rod fitting'therein and impinging against the back of the jaw, aspring or buffer for forcing said rod toward said jaw, and an adjlisting-screw having a conical surface fitting an aperture in saidbracket atright angles to said rod and adapted to force said spring andsaid rod inward, substantially as shown.

3. A jaw for crimping-machines, having two or more sets of angular orchevron shaped ribs, one above the other and separated bya groove ordepression the width of two or more ribs.

In testimony whereof I affix my signature in presence of two witnesses.

WVALTER E. FROST.

Vitnesses:

W'. W. SANBORN, S. IV. BATES.

